Transfer device and inkjet printing device

Abstract

Embodiments of the present application disclose a conveying device and an inkjet printing device thereof. The conveying device includes a conveying mechanism, a supporting structure, and a driving device. The supporting structure is opposite to the conveying mechanism and is magnetically levitated. The supporting structure is used to support an external component. The driving device is used to drive the conveying mechanism so that the supporting structure moves. The present application aims to solve the technical problem of instability when a glass substrate moves relative to an inkjet nozzle during the inkjet printing process.

Description

Technical Field

[0001] The present application relates to the technical field of inkjet printing, and particularly relates to a conveying device and an inkjet printing device. Background Art

[0002] In the process of preparing OLED (Organic Light Emitting Diode), an inkjet printing step is required. This step needs to carry a glass substrate through a platform, and relative movement between the inkjet nozzle and the glass substrate is required. In the solution of fixing the inkjet nozzle and moving the glass substrate, there are usually two setting methods. The first method is to place the glass substrate on a stage, and then move the glass substrate by moving the stage. The second method uses a jet device to lift the glass substrate by the buoyancy of the air flow and then move it.

[0003] In the research and practice of the prior art, the inventors of the present application found that the above methods have the following deficiencies: In the first method, during the movement of the stage, it is easy to vibrate or shake, resulting in an uncertain directional displacement of the glass substrate, reducing the accuracy of inkjet printing. In the second method, the unstable air flow supply of the jet device will also affect the transportation of the glass substrate, thereby affecting the accuracy of inkjet printing. Summary of the Invention

[0004] Embodiments of the present application provide a conveying device and an inkjet printing device thereof to solve the technical problem of instability when the glass substrate moves relative to the inkjet nozzle during inkjet printing.

[0005] Embodiments of the present application provide a conveying device, and the conveying device includes:

[0006] A conveying mechanism;

[0007] A supporting structure, the supporting structure is opposite to the conveying mechanism and is arranged in a magnetic levitation manner, and the supporting structure is used to support an external component; and

[0008] A driving device, the driving device is used to drive the conveying mechanism so that the supporting structure moves.

[0009] Optionally, in some embodiments of the present application, the supporting structure is arranged above the conveying mechanism, and the magnetism of the supporting structure repels the magnetism of the conveying mechanism.

[0010] Optionally, in some embodiments of the present application, the conveying mechanism is arranged above the supporting structure, and the magnetism of the supporting structure attracts the magnetism of the conveying mechanism.

[0011] Optionally, in some embodiments of the present application, the support structure includes a carrier plate, the carrier plate is magnetically repulsive or attractive to the conveying mechanism, the carrier plate is provided with a carrier plane, and the carrier plane is used for placing the external component.

[0012] Optionally, in some embodiments of the present application, the support structure further includes at least two limiting blocks, the two limiting blocks are arranged on opposite sides of the carrier plane, and the two limiting blocks and the carrier plane define a placement groove for placing the external component.

[0013] Optionally, in some embodiments of the present application, the carrier plate includes a first carrier plate and a second carrier plate, the first carrier plate and the second carrier plate have the same magnetism, and both are magnetically repulsive or attractive to the conveying mechanism;

[0014] The support structure further includes a first limiting block and a second limiting block, the first limiting block is arranged on the first carrier plane of the first carrier plate, the second limiting block is arranged on the second carrier plane of the second carrier plate, and the second limiting block is arranged opposite to the first limiting block. The first limiting block, the first carrier plane, the second limiting block and the second carrier plane define a placement space for placing the external component.

[0015] Optionally, in some embodiments of the present application, the conveying mechanism includes:

[0016] A base, the first carrier plate and the second carrier plate are arranged opposite to the base, and both the first carrier plate and the second carrier plate are magnetically repulsive or attractive to the base;

[0017] A first electromagnet, the first electromagnet is located on the side of the first carrier plate away from the second carrier plate, the first electromagnet is connected to the driving device, and the magnetism of the first electromagnet is repulsive to the magnetism of the first carrier plate; and

[0018] A second electromagnet, the second electromagnet is located on the side of the second carrier plate away from the first carrier plate, the second electromagnet is connected to the driving device, and the magnetism of the second electromagnet is attractive to the magnetism of the second carrier plate.

[0019] Optionally, in some embodiments of the present application, the support structure includes a magnetic layer, the magnetic layer is formed on the back surface of the external component, and the magnetic layer is magnetically repulsive or attractive to the conveying mechanism.

[0020] Optionally, in some embodiments of the present application, the conveying mechanism includes a conveyor belt, a transmission shaft, and a base. The conveyor belt is connected to the transmission shaft, and the base is disposed on the conveyor belt. The base is magnetically attracted or repelled by the support structure;

[0021] The driving device is connected to the transmission shaft to drive the conveyor belt to move the base in a predetermined direction.

[0022] Optionally, in some embodiments of the present application, the conveying mechanism includes a connected conveyor belt and a transmission shaft. The driving device is connected to the transmission shaft to drive the conveyor belt to convey in a first direction;

[0023] The conveyor belt has a magnetic region that is magnetically attracted or repelled by the support structure.

[0024] Correspondingly, an embodiment of the present application further provides an inkjet printing device, which includes an inkjet head and the conveying device as described above.

[0025] The conveying device provided by the present application includes a conveying mechanism and a support structure that is opposite to the conveying mechanism and is magnetically levitated. The support structure can be used to support an external component. A driving device is also provided for driving the conveying mechanism to move the support structure. Thus, the overall structure of the conveying device of the present application is relatively simple, and since magnetic levitation is not easily affected by other factors, the external component can be transported by magnetic levitation, which can reduce the risk of the external component shaking during transportation to ensure the stability of transportation, and thus effectively solve the technical problem of instability when the glass substrate moves relative to the inkjet head during the inkjet printing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0027] Figure 1 is a schematic structural diagram of the conveying device provided by the first embodiment of the present application;

[0028] Figure 2 is a schematic structural diagram of the conveying device provided by the second embodiment of the present application;

[0029] Figure 3 is a schematic structural diagram of the conveying device provided by the third embodiment of the present application;

[0030] Figure 4It is a schematic structural diagram of an external component and a magnetic layer provided in the fourth embodiment of the present application;

[0031] Figure 5 It is a schematic structural diagram of a conveying device provided in the fifth embodiment of the present application;

[0032] Figure 6 It is a schematic structural diagram of a conveyor belt of the conveying device provided in the fifth embodiment of the present application;

[0033] Figure 7 It is a schematic structural diagram of an inkjet printing device provided in an embodiment of the present application. Detailed Description of the Embodiments

[0034] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the orientation words such as "upper" and "lower" generally refer to the upper and lower in the actual use or working state of the device, specifically the drawing direction in the drawings; and "inner" and "outer" refer to the outline of the device.

[0035] The embodiments of the present application provide a conveying device and an inkjet printing device thereof. The following will be described in detail respectively. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments.

[0036] Referring to Figure 1 , the first embodiment of the present application provides a conveying device 100. The conveying device 100 includes a conveying mechanism 10, a support structure 20, and a driving device. The support structure 20 is opposite to the conveying mechanism 10 and is magnetically levitated. The support structure 20 is used to support the external component 200. The driving device is used to drive the conveying mechanism 10 to move the support structure 20.

[0037] The conveying device 100 provided in the present application includes a conveying mechanism 10 and a support structure 20 that is opposite to the conveying mechanism 10 and is magnetically suspended, and the support structure 20 can be used to support the external component 200. At the same time, a driving device is also provided for driving the conveying mechanism 10 to move the support structure 20. In this way, the overall structure of the conveying device 100 of the present application is relatively simple, and because the magnetic suspension is not easily affected by other factors, the external component 200 is transported by magnetic suspension, which can reduce the risk of shaking during the transmission process to ensure the stability of transportation, thereby effectively solving the technical problem of instability when the glass substrate moves relative to the inkjet nozzle during the inkjet printing process.

[0038] It should be noted that the external component 200 can be a glass substrate to be transported during the inkjet printing process, and of course it can also be other substrates that need to be moved when the display screen is made. It can be understood that the magnetic suspension setting between the transmission mechanism 10 and the support structure 20, the transmission mechanism 10 has magnetism, that is, it can be made by using permanent magnet materials, or it can be an electromagnet using the principle of electromagnetism. Thus, the magnetic force of the transmission mechanism 10 on the support structure 20 and the external component 200 will overcome the gravity of both the support structure 20 and the external component 200, and be in a magnetic balance to achieve a magnetic suspension state. Of course, the magnetic force of the transmission mechanism 10 can be set according to the specific use environment, such as the weight of the external component 200, the weight of the support structure 20, the distance between the transmission mechanism 10 and the support structure 20, etc., and the magnetic force is calculated by these parameters, thereby the magnetic force of the transmission mechanism 10. Since the support structure 20 and the conveying mechanism 10 are in magnetic balance, the driving device can drive the magnetic field position of the conveying mechanism 10 to change, thereby driving the support structure 20 to move, thereby achieving the function of transporting the external component 200. Alternatively, the driving device can also drive the conveying mechanism 10 to generate a magnetic field that moves the support structure 20, thereby also driving the support structure 20 to move, thereby achieving the function of transporting the external component 200.

[0039] In the first embodiment, the support structure 20 is disposed above the conveying mechanism 10, and the magnetism of the support structure 20 repels the magnetism of the conveying mechanism 10. It can be understood that the conveying mechanism 10 can be placed on the ground, and the support structure 20 is disposed above the conveying mechanism 10, that is, the external member 200 is located on the surface of the support structure 20 away from the conveying mechanism 10. Thus, when the external member 200 is a glass substrate waiting for inkjet printing, an inkjet head can be conveniently disposed above the support structure 20 to process the glass substrate. The support structure 20 can also have magnetism, and the magnetism of the support structure 20 repels the magnetism of the conveying mechanism 10, that is, the support structure 20 and the conveying mechanism 10 have the same polarity, and the force field between the like-pole magnetic fields will repel each other. Thus, the magnetic force between the conveying mechanism 10 and the support structure 20 mainly presents a mutually repulsive state, and at the same time overcomes the gravity of both the support structure 20 and the external member 200 to achieve magnetic balance.

[0040] In some embodiments, the conveying mechanism 10 includes a conveyor belt 14, a transmission shaft 15, and a base 16. The conveyor belt 14 is connected to the transmission shaft 15, and the base 16 is disposed on the conveyor belt 14. The base 16 is magnetically attracted or repelled by the support structure 20. A driving device is connected to the transmission shaft 15 to drive the conveyor belt 14 to move the base 16 in a predetermined direction. Among them, the driving device can be a driving motor, and the base 16 can be adhesively fixed to the conveyor belt 14 to ensure the stability of the base 16. The driving motor drives the transmission shaft 15 to rotate to drive the conveyor belt 14 to move, and then drives the base 16 to displace. Since the base 16 is magnetically attracted or repelled by the support structure 20, the position of the base 16 changes, resulting in a change in the magnetic field position, so as to drive the support structure 20 to move, and thus achieve the function of transporting the external member 200.

[0041] In some embodiments, the support structure 20 includes a carrier plate 21. The carrier plate 21 is magnetically repulsive or attractive to the conveying mechanism 10. The carrier plate 21 is provided with a carrying plane 211 for placing the external component 200. It can be understood that the carrier plate 21 is magnetically repulsive or attractive to the conveying mechanism 10, so as to achieve magnetic levitation of the carrier plate 21 relative to the conveying mechanism 10. The main function of the carrier plate 21 is to support the external component 200 to prevent the external component 200 from deforming due to gravity during the magnetic levitation transmission process. And the carrier plate 21 is provided with a carrying plane 211, so as to effectively ensure the stability of the external component 200 placed on the carrier plate 21. When projected from the direction of the external component 200 towards the carrier plate 21, the orthographic projection of the external component 200 is located within the carrier plate 21 to further ensure the stability of the load. It should be noted that a limiting groove can be recessed on one surface of the carrier plate 21, and the carrying plane 211 is formed at the bottom of the limiting groove of the carrier plate 21, so that the external component 200 can be placed in the limiting groove to further effectively improve the stability of the external component 200 after being placed.

[0042] Further, the support structure 20 further includes at least two limiting blocks 22. The two limiting blocks 22 are arranged on opposite sides of the carrying plane 211. The two limiting blocks 22 and the carrying plane 211 define a placement groove for placing the external component 200. Among them, the two limiting blocks 22 and the carrying plane 211 define a placement groove, so that the external component 200 is placed in the placement groove for limiting, to further improve the stability of the external component 200 placed on the carrier plate 21, and further ensure the stability of the external component 200 when the support structure 20 moves. It should be noted that the limiting blocks 22 can be arranged on the carrier plate 21 in a fixed setting manner to ensure the stability of the limiting blocks 22 after being set, and further ensure the limiting effect of the limiting blocks 22. Of course, the limiting blocks 22 can also be arranged on the carrier plate 21 in a movable setting manner, so that the position of the limiting blocks 22 is adjustable, and thus can adapt to external components 200 of different shapes and sizes, improving the convenience of use. In addition, the number of the limiting blocks 22 can be multiple, and the multiple limiting blocks 22 can be arranged along the circumference of the carrying plane 211 of the carrier plate 21, so as to limit multiple sides of the external component 200 to further improve the limiting effect.

[0043] Refer to Figure 2, the difference between the transfer device 100 of the second embodiment of the present application and the transfer device 100 of the first embodiment lies in that: the transfer mechanism 10 is arranged above the support structure 20, and the magnetism of the support structure 20 attracts the magnetism of the transfer mechanism 10. It can be understood that the transfer mechanism 10 is arranged above the support structure 20, that is, the external component 200 is located between the transfer mechanism 10 and the support structure 20, thereby effectively reducing the risk of the external component 200 being collided during transportation. The magnetism of the support structure 20 attracts the magnetism of the transfer mechanism 10, that is, the support structure 20 and the transfer mechanism 10 are of different polarities, and the force field between the different-pole magnetic fields will attract each other. In this way, the magnetic force between the transfer mechanism 10 and the support structure 20 mainly presents a state of mutual attraction, and at the same time overcomes the gravity of both the support structure 20 and the external component 200, and thus magnetic balance can also be achieved.

[0044] Refer to Figure 3 , the difference between the transfer device 100 of the third embodiment of the present application and the transfer device 100 of the above embodiment lies in that: the carrier plate includes a first carrier plate 211 and a second carrier plate 212, the first carrier plate 211 and the second carrier plate 212 have the same magnetism, and both are magnetically repulsive or magnetically attractive to the transfer mechanism 10. The support structure 20 further includes a first limit block 221 and a second limit block 222. The first limit block 221 is arranged on the first carrier plane 2111 of the first carrier plate 211, the second limit block 222 is arranged on the second carrier plane 2121 of the second carrier plate 212, and the second limit block 222 is arranged opposite to the first limit block 221. The first limit block 221, the first carrier plane 2111, the second limit block 222, and the second carrier plane 2121 define a placement space for placing the external component 200.

[0045] Among them, the first carrier plate 211 and the second carrier plate 212 have the same magnetism, so as to be magnetically repulsive or magnetically attractive to the transfer mechanism 10 at the same time, and the first carrier plate 211 and the second carrier plate 212 repel each other to ensure the stability of their positions. The first carrier plate 211 and the second carrier plate 212 respectively bear a part of the external component 200, so that the weight of being borne by a single carrier plate can be avoided. At the same time, the first limit block 221 is fixed to the first carrier plane 2111, the second limit block 222 is fixed to the second carrier plane 2121, and the first limit block 221 and the second limit block 222 can respectively abut against opposite sides of the external component 200, so as to limit the external component 200. In this way, the clamping force can be effectively adjusted through the distance between the first carrier plate 211 and the second carrier plate 212 to adapt to external components 200 of different sizes, so that the fixing of the external component 200 is better, and at the same time, it is also convenient for taking and placing the external component 200.

[0046] Furthermore, the conveying mechanism 10 includes a base 11, a first electromagnet 12 and a second electromagnet 13. The first carrier plate 211 and the second carrier plate 212 are disposed opposite to the base 11, and both the first carrier plate 211 and the second carrier plate 212 are magnetically repulsive or magnetically attractive to the base 11. The first electromagnet 12 is located on the side of the first carrier plate 211 away from the second carrier plate 212. The first electromagnet 12 is connected to a driving device, and the magnetism of the first electromagnet 12 is magnetically repulsive to the magnetism of the first carrier plate 211. The second electromagnet 13 is located on the side of the second carrier plate 212 away from the first carrier plate 211. The second electromagnet 13 is connected to the driving device, and the magnetism of the second electromagnet 13 is magnetically attractive to the magnetism of the second carrier plate 212.

[0047] Wherein, the driving device is a power supply device. Thus, by supplying power to the first electromagnet 12 and the second electromagnet 13, magnetism is generated in both of them. The base 11 is magnetically repulsive or magnetically attractive to the first carrier plate 211 and the second carrier plate 212. Thus, the first carrier plate 211 and the second carrier plate 212 are in a magnetically levitated state. The first electromagnet 12 and the second electromagnet 13 are arranged in the horizontal direction. And since the magnetism of the first electromagnet 12 is magnetically repulsive to the magnetism of the first carrier plate 211, the magnetic force generated between the two presents a repulsive force effect, so that the first carrier plate 211 moves towards the direction of the second electromagnet 13, and further the external component 200 also synchronously moves towards the direction of the second electromagnet 13. The second electromagnet 13 is magnetically attractive to the second carrier plate 212. Thus, the magnetic force generated between the two presents an attractive force effect, so that the second carrier plate 212 moves towards the direction of the second electromagnet 13 like the first carrier plate 211, and further ensures the normal transportation of the external component 200. It should be noted that the magnetic force between the first electromagnet 12 and the first carrier plate 211 is greater than or equal to the magnetic force between the second electromagnet 13 and the second carrier plate 212, so as to ensure that the external component 200 can be stably located on the first carrier plate 211 and the second carrier plate 212 during transportation.

[0048] Referring to Figure 4 , the difference between the conveying device of the fourth embodiment of the present application and the above-mentioned conveying device is that: the support structure includes a magnetic layer 23, and the magnetic layer 23 is formed on the back surface of the external component 200. The magnetic layer 23 is magnetically repulsive or magnetically attractive to the conveying mechanism. Wherein, the support structure can also be a magnetic layer 23 directly coated on the back surface of the external component 200. The magnetic layer 23 is iron powder or a magnetic material with magnetism, etc. The magnetic layer 23 is magnetically repulsive or magnetically attractive to the conveying mechanism. At the same time, the magnetic force between the magnetic layer 23 and the conveying mechanism overcomes the gravity of the external component 200, thereby realizing the magnetic levitation setting between the magnetic layer 23 and the conveying mechanism. Thus, without additionally setting other carriers, the magnetic levitation transportation of the external component 200 can also be realized by moving the conveying mechanism.

[0049] Referring to Figure 5 and Figure 6 Figure 6 ,The conveying device 100 of the fifth embodiment of the present application is different from the above-mentioned conveying device 100 in that: the conveying mechanism 10 includes a conveyor belt 14 and a transmission shaft 15 connected to each other, and the driving device is connected to the transmission shaft 15 to drive the conveyor belt 14 to move in the first direction. The conveyor belt 14 has a magnetic region 141, and the magnetic region 141 attracts or repels the support structure 20 magnetically. Wherein, the driving device can be a driving motor, and the conveying mechanism 10 is the conveyor belt 14 and the transmission shaft 15 connected to each other, and the conveyor belt 14 is provided with a magnetic region 141, and the magnetic region 141 attracts or repels the support structure 20 magnetically. Thus, when the conveyor belt 14 is driven by the driving motor to move, the magnetic field position of the magnetic region 141 changes, so as to drive the support structure 20 to move, and further achieve the effect of transporting the external component 200. In addition, the conveyor belt 14 can also be provided with magnetic regions 141 and non-magnetic regions 142 alternately arranged in the second direction, and the second direction intersects with the first direction, so as to effectively reduce the setting of the magnetic regions 141 and save costs while ensuring the transportation of the external component 200.

[0050] Referring to Figure 7 Figure 7 ,The present application provides an inkjet printing device 1000, which includes an inkjet head 300 and a conveying device 100, and the inkjet head 300 can be fixedly arranged or movably arranged for easy movement. And the conveying device 100 is the conveying device described in any of the above embodiments. In one embodiment, the conveying device 100 includes a driving device and a conveying mechanism 10 and a support structure 20 that are oppositely and magnetically levitated, and the inkjet head 300 is fixedly arranged above the support structure 20. Thus, when the external component 200 is placed on the support structure 20, the driving device drives the conveying mechanism 10 to move the support structure 20, and then synchronously drives the external component 200 to move directly below the inkjet head 300 for the inkjet process. The inkjet printing device 1000 transports the external component 200 for inkjet by means of magnetic levitation, which can improve the stability of the transportation of the external component 200, and further improve the accuracy of inkjet printing.

[0051] Since the conveying device in this inkjet printing device adopts all the technical solutions of the above-mentioned all embodiments, therefore, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated one by one here.

[0052] The above has introduced in detail a transmission device and an inkjet printing device provided by an embodiment of the present application. Specific examples are used herein to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A conveying device, characterized in that, The conveying device includes: A conveying mechanism; A support structure, which is opposite to the conveying mechanism and is magnetically levitated. The support structure is used to support an external component. The support structure includes a carrier plate, and the carrier plate includes a first carrier plate and a second carrier plate, and the first carrier plate and the second carrier plate are horizontally arranged; and A driving device, which is used to drive the conveying mechanism so that the support structure moves; The conveying mechanism includes: A base, the first carrier plate and the second carrier plate are arranged opposite to the base, and both the first carrier plate and the second carrier plate are magnetically repulsive or magnetically attractive to the base; A first electromagnet, which is located on the side of the first carrier plate away from the second carrier plate. The first electromagnet is connected to the driving device, and the magnetism of the first electromagnet is magnetically repulsive to the magnetism of the first carrier plate; and A second electromagnet, which is located on the side of the second carrier plate away from the first carrier plate. The second electromagnet is connected to the driving device, and the magnetism of the second electromagnet is magnetically attractive to the magnetism of the second carrier plate. The first electromagnet and the second electromagnet are arranged horizontally; The first carrier plate and the second carrier plate have the same magnetism, and both are magnetically repulsive or magnetically attractive to the conveying mechanism; The support structure further includes a first limiting block and a second limiting block. The first limiting block is arranged on the first bearing plane of the first carrier plate, and the second limiting block is arranged on the second bearing plane of the second carrier plate, and the second limiting block is arranged opposite to the first limiting block. The first limiting block, the first bearing plane, the second limiting block and the second bearing plane define a placement space for placing the external component.

2. The transfer device according to claim 1, wherein The support structure is arranged above the conveying mechanism, and the magnetism of the support structure is magnetically repulsive to the magnetism of the conveying mechanism.

3. The transfer device according to claim 1, wherein The conveying mechanism is arranged above the support structure, and the magnetism of the support structure is magnetically attractive to the magnetism of the conveying mechanism.

4. The transfer device according to claim 2 or 3, wherein The conveying mechanism includes a conveyor belt, a transmission shaft and a base. The conveyor belt is connected to the transmission shaft, and the base is arranged on the conveyor belt. The base is magnetically attractive or magnetically repulsive to the support structure; The driving device is connected to the transmission shaft to drive the conveyor belt to move the base in a predetermined direction.

5. The conveying device according to claim 2 or 3, characterized in that, The conveying mechanism includes a connected conveyor belt and a transmission shaft. The driving device is connected to the transmission shaft to drive the conveyor belt to convey in a first direction; The conveyor belt has a magnetic area, and the magnetic area is magnetically attractive or magnetically repulsive to the support structure.

6. An inkjet printing device, characterized in that, The inkjet printing device includes an inkjet head and the conveying device as claimed in claims 1 to 5.

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